Shutter-worker



(No Model.)

I T. N. LUPTON.

SHUTTER WORKER.

10.351,705. atene-ed 0 ct.26,18a6..

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ya@ N@ O @j l e., 'i l wwv'allelimotioned bar with the guide links or UNITED STATES 'PATENT OFFICE. f

THOMASV N. LUFTON, OF WINCHESTER, VIRGINIA.

sHuTTER-fwoRKi-:n-

SPECIFICATION forming part of Letters P Application ined Api-ii so, isst.

To @ZZ whom t may concerm y Be it known that I, THOMAS N. LII-Piron, ot' Winchester, in the county of Frederick and State of Virginia, have invented a new and- .useful Improvement in Shutter-Workers, of which the following is a specification.

My invention relates to means for working the shutters of a window from theinside without the necessity of hoisting the sash; and it consists in thepeculiar combination of a par arms and the operating-handle, as hereinafter i'ully described.

Figure 1 is a horizontal section through the lower part of the window, showing several forms of the invention; and Fig. 2 isa vertical section through the line x x.

A representsthe window-sash, B the sill, C O the shutters, and G the frame, of any ordinary window, in connection with which [have shown three forms of my invention. y

Referring to the form on the right, D is a curved metal bar, which is jointed at b to the shutter at a certain distance from the hinge a of the shutter. This bar extends through the wall or frame to the interior of the room, and is jointed to a swinging link, E, which is exactly the same length as the distance from the point b to the hinge a. At the inner'end of this curved bar it is jointed t0 a crank-arm, F, rigidly fixed to the pivoted crank-handle F, which crank-arm F is also of the same length as the link E, or distance from points a to b. These connections of the bar D cause it to have always a parallel motion, or rather a motion about the link.' and arm E and Fas radii, that causes it to move as the bar of a parallel ruler, and to successively occupy dit'- ferent parallel positions, in which motion the point b moves around the hinge-point a of the shutter with the saine curve as thatof links E and ar1nF,which causes arotary adjustment of arm F by crank-handle F to open or close the shutter C. l

atent No. 351,705l dated October 26, 1886.

Serial .No.OOJzS. (No model.) I

On the left is shown a somewhat modified end ofthe bar, while the crank-arm and rigidly-connected handle E4 E5 are i'ulcrumed to the fixed bar H and the rigid arm Eisjointed to the bar D2 between its ends.

To lock theshutter open a lug, Z, is made toA engage with the crank-handle and lock it when adjusted to the open position, and a similar lug, m, is made to lock the crank when the shutter is closed. For additional security, also, in locking the shutter closed, the usual gravity-catch, K, is made to hook over a lug on the window-sill, and is raised therefrom (see Fig. 2) when the shutter is to be opened by a spring-,seated push-bar, P, without the necessity ofraising the Window-sash.

, Having thus described my invention, what I claim as new is 1. A shutter-worker consisting ot' a curved parallel -motioned bar, combined with and jointed to a swinging link, a crank-arm ofthe saine length as the link, andahandle i'or working theA bar, substantially as shown and described.

2. The combination, with a shutter, 0f a curved parallel-motioned bar jointed to the shutter, a link of the same length as the distance from the axis of the shutter t0 the joint of bar D, the said link being jointed at one end to the bar and at its other end to a Xed center, and a pivoted crank-arm of the same vlength as the link,jointed to the bar and provided Witll a handle, substantially as shown and described.

THOMAS N. LUB'ION. lVitnesses:

PHILIP W. BOYD, JOHN B. GHILEs. 

